Heat accumulating material enclosing container and heat accumulating apparatus

Abstract

The present invention relates to a bag-like container, and a spherical container in which a latent heat accumulating material is enclosed, and a heat accumulating apparatus employing such containers. A heat accumulating mat material (A) is of a flat bag-like container divided into a plurality of sections, where a latent heat accumulating substance is enclosed. A spherical container (1A) has a heat transfer area enlarging portion of a recess (102), a groove (103). A solar heat accumulating greenhouse 2A has a radiator heat exchanging portion (2B, 2D), a heat accumulating tank 2C and a forced circulation liquid system.

What is claimed is: 
     
       1. A solar heat accumulating greenhouse system, comprising: greenhouse space defining means enclosing a greenhouse space comprising a major volume of air for exchanging heat,   a first heat transfer fluid medium circulating system provided in said greenhouse space and comprising piping means for circulating a first heat transfer fluid medium   heat exchange means provided in an uppermost portion of said greenhouse space and coupled to said first heat transfer fluid medium circulating system for exchanging heat between said first heat transfer fluid medium and said major volume of air circulated within said greenhouse space, and   heat accumulating means coupled to said first heat transfer fluid medium circulating system for exchanging heat between said first heat transfer fluid medium and said heat accumulating means for accumulating heat,   said heat accumulating means comprising: heat insulating tank means coupled to said first heat transfer fluid medium circulating system for defining a heat insulated space for allowing a flow therethrough of said first heat transfer fluid medium,   heat accumulating capsule means containing a phase transforming heat accumulating medium and provided in said heat insulating tank means in contact with said first heat transfer fluid medium for accumulating heat, and   flow path defining means provided in said heat insulating tank means for defining a flow path generally extending in a horizontal direction and for causing a change in the flow direction of said first heat transfer fluid medium in upward and downward directions,   said flow path defining means comprising partitioning means for partitioning the space in said heat insulating tank means into a plurality of compartments disposed in succession along the upstream to downstream direction of said flow of said first heat transfer fluid medium, and   passage means for directing said flow of said first heat transfer fluid medium from the lower portion of an upstream compartment to the upper portion of the next adjacent downstream compartment; and wherein       a portion of said piping means for flow of said first heat transfer fluid medium into said heat accumulating means is coupled to an upper portion of an upstream compartment, and a portion of said piping means for flow of said first heat transfer fluid medium out of said heat accumulating means is connected to a lower portion of a downstream compartment,   said heat accumulating capsule means is adapted to extend through said partitioning means into a plurality of compartments and each said partitioning means is split into upper and lower partitioning means elements at a position where a heat accumulating capsule means extends therethrough.   
     
     
       2. A solar heat accumulating greenhouse system in accordance with claim 1, which has a heat collecting mode and a heat radiating mode, and wherein in said heat collecting mode   said heat exchanging means is adapted to collect heat from said air in said greenhouse space to increase the temperature of said first heat transfer fluid medium, so that heat may be transferred to and accumulated by said heat accumulating means.   
     
     
       3. A solar heat accumulating greenhouse system in accordance with claim 2, wherein in said heat radiating mode   said heat exchanging means is adapted to radiate heat to said air in said greenhouse space to decrease the temperature of said first heat transfer fluid medium, so that heat is transferred from said heat accumulating means.   
     
     
       4. A solar heat accumulating greenhouse system in accordance with claim 2, which further comprises heat radiating mode means for use in said heat radiating mode, said head radiating mode means comprising   a second heat transfer fluid medium circulating system provided in said greenhouse space for circulating a second heat transfer fluid medium,   heat radiating means coupled to said second heat transfer fluid medium circulating system for transferring heat from said second heat transfer fluid medium for radiation, and   heat collecting means coupled to said second heat transfer fluid medium circulating system and thermally coupled to said heat accumulating means for exchanging heat between said first heat transfer fluid medium in said heat accumulating means and said second heat transfer fluid medium of said heat radiating mode means so as to absorb heat from said first heat transfer fluid medium in said heat accumulating means.   
     
     
       5. A solar heat accumulating greenhouse system in accordance with claim 4, wherein said heat radiating means is provided in said greenhouse space.   
     
     
       6. A solar heat accumulating greenhouse system in accordance with claim 4, wherein said heat radiating means is provided underground beneath said greenhouse space.   
     
     
       7. A solar heat accumulating greenhouse system in accordance with claim 4, wherein said heat radiating means is provided both in said greenhouse space and underground beneath said greenhouse space.   
     
     
       8. A solar heat accumulating greenhouse system, comprising: greenhouse space defining means enclosing a greenhouse space comprising a major volume of air for exchanging heat,   a first heat transfer fluid medium circulating system provided in said greenhouse space for circulating a first heat transfer fluid medium therethrough,   heat exchange means provided in an uppermost portion of said greenhouse space and coupled to said first heat transfer fluid medium circulating system for exchanging heat between said first heat transfer fluid medium and said major volume of air circulated within said greenhouse space, and   heat accumulating means coupled to said first heat transfer fluid medium circulating system for exchanging heat between said first heat transfer fluid medium and said heat accumulating means for accumulating heat,   said heat accumulating means comprising; heat insulating tank means coupled to said first heat transfer fluid medium circulating system for defining a heat insulated space for allowing a flow therethrough of said first heat transfer fluid medium,   heat accumulating capsule means containing a phase transforming heat accumulating medium and provided in said heat insulating tank means in contact with said first heat transfer fluid medium for accumulating heat, and   flow path defining means provided in said heat insulating tank means for defining a flow path generally extending in a horizontal direction and for causing a change in the flow direction of said first heat transfer fluid medium in upward and downward directions;     said heat accumulating capsule means comprising a plurality of heat accumulating capsules each being a spherical body having a large number of heat transfer area enlarging portions provided over the entire surface thereof, said heat transfer enlarging portions comprising a plurality of first annular grooves parallel to each other and a plurality of second annular grooves parallel to each other and crossing said first grooves.